I think your course of action is pretty clear from that last post, John. You sound more at peace with things than at any other time since I first started following your threads.
You never know, you could still get back together down the road. I'm not certain of the statistics, but I think it's something like 20% of divorced couples remarry each other. Treat her with grace, civility and forgiveness as you exit, and you never know what the future may hold.